The secret meeting room where most of the design decisions for the original iPhone’s software were made is “hallowed ground” to Greg Christie, who designs the software interface for products and one of the first members recruited to work on the device in 2004.

It doesn’t mean that the windowless room, lit by fluorescent lights hanging from the ceiling, looked like anything special. Christie recalled the walls had signs of water damage from a flood in an adjacent bathroom. A few images covered the walls including one of Apple’s “Think Different” posters of famous graphic designer Paul Rand and another of a large chicken running around without its head.